Thermometer



Aug. u, @925.

J. ELY

THERMOMETER Filed March 14 l /LLIS adblue,

Patented lAug. 1l, 1925.

UNITED STATES JAMES Eimer EocnEs'rEE, NEW. Yoan,

ASSIGNOR T TAYLOR' INSTRUMENT COM- PANIES, ROCHESTER, NEW YORK, A CORPORATION 0F NEW YORK.l

THERMOMETER.

Application illed March 14,' 1925. Serial No. 15,640.

To all whom it may con/Jem;

' Be it known that I, JAMES ELY,-a citizen .of the UnitedStates, residing at Rochester,

in the county of Monroe and State of New York, have linvented certain new and useful improvements in Thermometers; and l do yhereby declare the following to be a full,

clear, and exact description of the same,

4reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked thereon. i

This invention relates to thermometers of the indicating variety comprising a fluid filled bulb and stem provided with temperature graduations and relates more `especially to the type of such thermometers known in the art as side angle thermometers, the chief object of the invention being to provide'a thermometer of this class having an improved mounting and casing' embodying a more simple and economical former1 construction.

To these and other ends the invention resides in certain improvements and -combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

Figure lis an elevation of a thermometer embodying the present invention and showing the same applied to a tank or vat a portion of which is shownv inl section;

Figure 2 is an enlarged view of the thermometer partly broken away;

Figure 3 is a sectional view on the line 3L-3 in Figure 2, and

Figure 4 is a bottom view of a portion of the instrument partly in section.

Similar reference numerals throughout the several views indicate' the sameparts.

The present invention provides an improved thermometer of the so-called side angle type, particularly adapted for insertion through the wall of a container, such as a vat or tank, to indicate the temperature i within the same. Thus, the thermometer is shown in Figure 1 as applied to a tank 5 having a double wall 6l through which the bulb portion 7 of the thermometer .stem

is inserted with the indicating portion or scale case 8 conveniently arranged for observation on the outside. The thermometer is fitted to. the' container wall in the present Y instance by vmeans of a union connection comprising a hub or sleeve 9 inserted through openings in the walls, with a ange 10 at its inner end resting against the innersurface of the wall. A nut 11 on the outer end of the sleeve which projects exteriorly of the wall serves to draw the flange 10 tightly against the container wall and secure the sleeve in place.

operates a tapered shoulder 13 on the metal casing 14C which encloses and protects the thermometer stem adjacent the bulb. A swivel nut 15 rotating on the casing, as more particularly described hereafter, engages the threaded outer end of the bore of sleeve 9 and serves to maintain the casing shoulder 13 against the seat 12 of the sleeve, so that the thermometer is mounted in the container wall by a Huid tight 'and detachable form of connection, as in the patent to Maurer, No. 1,233,385, July 17, 1917, thermometer holding device for tanks and the like.

The improved thermometer comprises a V-shaped scale case 8'with diverging walls 16 and 17, on which the scale plates 18 are secured, as by means of screws 19, adjacent and on opposite sides of the indicating portion 20 ofthe glass stem of the thermometer which is located in front of the intersection of the Wall intersection.

Projecting laterally from the lower end of one yside of the scale case is an integral casing extension 21 arranged with its axis parallel with the front of the scale case, as best shown in Figures 3 and 4. Extension 21 is formed with a central bore 22 opening through the wall 17 of the scale case into the latter and the thermometer stem has its lower end turned through a right angle as at 23, the angular portion of the stem being carried through the bore 22 of extension 2l and prolonged and provided with the casing 14 for mounting the same iny the container wall as already described. The outer end of the casing is screwvthreaded as indicated at 25 and engaged in a threaded socket in the outer end of the scale case extension 21. Casing 14 is also formed with a flange or shoulder 26 between which and the end of the extension 21 the swivel nut 15 rotates for securing the casing and thermometer in the union connection. l

The diver 'ng walls 16 and 17 of the scale case are pre erably provided with short forrlhe sleeve has at its inner end a tapering seat 12 with which cowardly extending wall portions 27 andthe front of the case is closed by a glass 28 mounted in any suitable manner in a recthe bottom of the frame. These dowel pins are engaged in sockets in the-bottom of scale case. The frame is secured in engagement with the case by means of a screw 33 passed throu h-the top of the frame and engaged in a t readed opening 34 in the top of the case. By the simple removal of screw 33, frame 29 .is readily removed from the case for cleaning or repairing the instrument.

The invention thus provides a'thermometer of the side angle type having a simple and practicall form of construction capable of being manufactured and assembledifor use at a comparatively low cost 'and affording an efficient instrument of pleasing appearance.

I claim as my invention:

1. A thermometer of the class described comprising a scale case having an integral casing extension projecting .laterally from the lower end of .one side thereof parallel with the rontof said scale case, a, stem in said case having an angular portion carried through said extension and provided with a bulb, and a frame embracing the front of said case having a glass mounted therein to close the same. e

2. A thermometer of the class described 'for said glass embraci comprising a scale case having an integral with the front of said scale case, a stem in" said case having an angular portion carried through sald extension and provided wlth a' bulb, a glass for closing said scale case, and

a frame for said glass embracing the front of said case and secured thereto at one end by a dowel pin and at the other end by a screw.

3. A thermometer of the class described comprising a V-shaped scale case having an integral casing extension projecting later'- ally from the lower end of one side thereof parallel with the front of said scale'case, a stem in said scale case having an angular portion carried through said extension and provided with a bulb, a bulb casing having its end screwed into said extension, and a frame embracing and detachably secured to the front of said scale oase having a glass for closing the same.

4. A thermometer of the class described comprising a V-shaped scale casehaving an integral casing extension projecting laterally from the lower end ofvone side thereof parallel with the front of said case, a stem in said scale case having an angular portion carried through said extension and provided with a bulb, a bulb casing having its endscrewed into said extension, a glass closing the front of said scale case, and a frame the front walls of said scalecase and detac ably secured thereto at one end by dowel pin means and at the other end by means of a screw.

JAMES ELY. 

